Gas-cleaner.



P. MEEHAN.

GAS CLEANER.

AFPLIOATION FILED JULY 31, 1911.

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GAS CLEANER.

APPLIOATIONIILED JULY 31, 1911.

Patented Aug. 20, 1912.

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GAS CLEANER.

APPLICATION FILED JULY s1, 1911.

1,035,892. Patented Aug. 2o, 1912` 3 SHBBTSSIIBET 3.

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r v l V PATRICK MEEHAN, QFVLOWELLVILLE, OHIO.

oas-CLEANER.

,. clpecification of Letters Patent.

Application led July 31, 1911. Serial No. 641,581.

To all Iwhom it m'ay concern Be it known that I, PATRICK MEEHAN, a

resident of Lowellville, in the county of -Mahoning and State of Ohio,have invented a new and useful Improvement in Gas- Cleaners, of whichthe following is a specification.

This invention relates to gas cleaners and `moreparticularlyto apparatusfor cleaning gas furnace gases.

The object of the invention 1s to provide a dry gas cleaner, a. e., one1n which no water is used and whiclrwill thoroughly free the i gas fromall dust and other solid matter, and also from moisture and otherimpuri- 1 ties.

Gas -is ordinarily cleaned by means of washers, i'. 6., apparatusthrough which the gas is passed and in which itcomes in con` tact withor passes through water which fwashes out the dust and other impurities.

In some localities washers are objectionable on account'of draining intostreams and l polluting them with the washwater which frequentlycontains highly linjurious impurities.` In other localities where wateris scarce, to secure the required amount of water for'sueh washers is aserious problem, and power is, of course, necessary to circulate thewater, and there is also more or less `leakage from such washers whichmakes the surroundings wet and sloppy.

In my Patent No. 955.651, granted April 19, 1910, is described andclaimed apparatus for cleaningr gas whereby the aforesaid dithcultiesare overcome and wherein thefgas is cleaned entirely Iin a dry state andWithout theluse of any water whatsoever. The present invention, likethat of'my patent above identified, also operates entirely by a dryprocess and withoutvthe use of any water whatsoever, and 1s animprovement on the apparatus shown 1n my aforesald patent,

- the apparatus being cheaper to construct and equally, if notl moreeffective, in removing the impurities from the gas.

The invention comprises the construction, arrangement and combination ofparts hereinafter described and claimed.

In the accompanying drawings, Figure 1 isa verticalv section through theimproved gas cleaner; Fig. 2 is a top view thereof with the shell brokenaway to sh'ow the interior parts; Fig. E is an elevation with the up erpart in section on the line 3 3, FigJI; FPig 4 is a top view of the.central portionof the Patented Aug. 20, 1912..

apparatus; Fig. 5 is an enlarged section on the line 5 5, Flg. 1.through a bathe plate.

taken transversely of the dust collecting gutter; Fig. 6 is a transversesection on the line 6--6, Figs. 1 and 2, showing the transverselua-tiles and the manner of connection to the main batlies. and Fig. 7is a view similar to Fig. 5 showing a modification. 2

ing against such plates falls by gravity, and

providing suitable gutters or ledges to conduct such solid' matter to asuitable dust collector. 1

The apparatus comprises in its essential features, a casing 9 inclosinga chamber 10 which forms the dust separator, and pro-.

vided with an inlet 11 for the gas at one side and the outlet 12 in theopposite side, the gas passing substantially horizontally through thedust separatingvchamber 10.

The chamber 10 is practically a Continuation or section of the conduits11 and l2, butv is enlarged somewhat `by extending the casing downwardlywith sloping walls 13 which connect to a vertical `casing 14 forming thedust collecting 'chamber or catcher.

Within the casing 9 are located the battle4 plates for beatingout of thegas the impuri ties carried thereby. The main battle plates are disposedsubstantially vertically and run longitudinally in the conduits' andchamber. As shown, there are four sets of such plates; the lirst setcomprising two4 plates 15, the next set comprising two plates 16, thethird vset comprising three 'p'lates 17, and the final set comprisingtwo plates 18. The plates of each set are arranged to break joints withth'ose .of theadjacent set, as

to the plates and to the 'shell or casing 9.

Each of these plates is provided with a gutter or ledge for conductingthe impurlties which are caught thereby downwardl ward dust collectingchamber 14. hese gutters or ledges may be of various forms, such as theZ or angle gutters illustrated in my Patent No. 955,651, and are shownin the form of troughs secured to the rea-r edges of the batleplates. InFigs. 1 2, 3 and 5 these areshown'J in the form of sections of anglemembers located slightly beyond the rear edges of the plates and se#cured thereto by `angle clips 21, the angle gutter members being solocated as to project beyond. the side faces of the plates on Abothsides so as to catch the solid matters drifting along both faces of theplates. Theu plates themselves are slightly inclined from the bottomtoward the top in the direction of the flow of the gas and these guttersor roughs conduct the solid matters downwardly toward the outlet openingfrom the bottom of the easing 9.

Fig. 7 shows a modilicationwherein, in l' f3 lieu el angle shapedgutters, channel shaped gut r; 2Oa are used. Various other forms ofgutters will answer the purpose equally as well. l also prefer to secureto the inner wall of the shell or casing 9,. a number of ledges orgutters for catching any solid -matters which drift along the inner faceof such casing. A number ofsuch are shown, being in the form of anglemembers secured to the shell by means of angle clips 22. The drawingsshow a pair of initial gutters 23 near the admission opening 11, andfour other such pairs of gutters, 24, 25, 26 and 27, distributed alongthe casing 9, the last pair being` in proximity 4to the outlet opening12.

ln addition to the vertical longitudinal baliles described. I alsoprovide transverse ba'liies between the main baille plates, these beingindicated at 30, and being set on an incline so as to throw ythe gasdownwardly. These transverse baliies are formed in sections, fittedbetween the vertical baiiies -and are secured thereto and to the shellby means of angle clips 31. Preferably these battles are provided ontheir under faces with a number of projections 32 of considerable lengthand irregularly placed or staggered, and seri/'e as additional means forbeating out of the the solid matters carried thereby. Vany desirednumber of transverse battles 8O may be employed. The drawings show twobetween the initial set of vertical battle plates 1:3, three between thenext succeeding set of vertical baille plates 16, six between the nextsucceeding set of vertical baille plates 1? and four between the finalset. of vertical, baille plates 18. "ifheir number, however, may bevaried.

Preferably aty the top of casing 9, I provide a number of inclinedplates 34, three such plates being shown, for the purpose of deflectingdownwardly the stream of gas .flowing along the upper wall of saidcasing.

"fh inclined plates are also formed in si seetions fitted between thevertical baille its plates. and secured thereto and to the shell orcasing 9 by angle members 35.

The dust receiving chamber or catcher 14 is` illustrated as of tubularform provided at its lower end with a hopper 38 whose discharge openingis closed by means of a bell valve 39, the latter being operated bylever 40 fulcrumed on the swinging link or member 41 and provided at theouter end with an adjustable l counter weight 42.

ln.A orderto prevent the from flowing out whenthe bell 39 is lowered toremove the dirtnf-rom the catcher, l preferably provide between thecatching chamber 14 and f the separating chamber 10, a valve or valves80 which1 can be closed when removing the dirt from the catcher. Asshown in the draw ing, in the lower part of the casing` 9 are' aplurality of transverse members, shown as ridges 44, and hinged to.these at 45 are a plurality of valves or shutters 46 adapted to closethe spaces between ridges 44 and at the sides thereof. Each of theseshutters has pivoted thereto one end of a connecting rod 47, the otherends of which arepivoted to. arms or cranks 48 on a rock shaft 49. vOneend of said'shaft extends outside of the dust catching chamber and hassecured thereto ah arm or lever 50 which at one end is provided with anadjustable count-er weight 51, and 95 having p-ivoted to its oppositeend the upper end of an adjustable connecting rod 52 whose lower end ispivoted to a lever 53,-fulcrumed at 54 and connected by link 55 to thebell operating lever 40. These parts are'so ar- 10o ranged that when'thebell 39 is closed, the valves 46 are open, thereby permitting the dustand other impurities to drop from the separating chamber' 10 into thecollecting chamber 14. lWhen the bell 39 is lowered to remove from thecollectingfchamber the dust. accumulated therein, the connections,v fromlever 40 to the valve 46 close said valves, thereby cutting olfcommunication between separating chamber 1Q and dust collecting chamberlvland preventing from blowing out of thecollect-ing chamber when thebell is open. A

The dust catcher is mounted upon suitable pillars to elevate the samesutliciently to allow of a cart or the like being brought under the sameto receive the discharge therefrom. A ladder 61 runs to the top to asuitable working platform 62 and protecting railing 63. In the top ofthe casing is an oval or elongated manhole 64 of sutl'icient size topermit of the removal4 and insertion therethrough of the largest sizedbaille plates in the interior. rlhis manhole .is closed by cover 65which in turn is provided with a small manhole 66 closed by cover 67,through which workmen can enterfor the purpose of repairs .or cleaning.

The casing` 9, as well as the collecting chamber 14 may, if desired, be'lined with 130 les fire brick and the like, although this is notnecessary.

ln the use of the apparatus, the gas enters through yconduit 11 andleaves through conduit 12, lflowing through the chamber 10 Where it issplit into a number of streams by means of the vertical battle platesand is deflected downwardly somewhat by the transverse batlies 30. Thechamber l0 is somewhat larger than the inlet and outlet openings tocompensate for the space occupied by the various battle plates, and alsoto allow the gas to expand and thereby lose partv of its velocity, whichcauses the impurities to drop out by gravity. The solid and heavier mat,

ters when they strike against the ballie plates and shclLot' the casing,have a tendency to drift along the surface oi' the battles and theshell, unless sutliciently heavy to drop by gravity. .Such parts as donot fall by gravity are caught by the various ledges and gutters andconducted thereby to the lower part of the casing, whence they eitherdrop directly into the-collecting chamber 1,4 or upon the sloping walls18 and slide down the latter into the said collecting chamber.

The gas is `thereby cleared of all solid mat-A ters and moisture andwithout the use of Water. The cleaner 1s strictly a dry cleaner and 1snot yopen to the objection of gas washers, viz. ythe pollution of thestreams with the wash water, the ditliculty of securing sufficient waterin certain localities, the power necessary to pump and circulate thewater, and the sloppy, slushy condition around gas washers. 1

The apparatus described is also useful for removing moist-ure from gaswhich has been washed. lt can'alsobe used to clean producer gas eitheras it comes from the producer, or in the pipes which lead to stoves orboilers.' The apparatus can also be used as a dust catcher for anypurpose where it is dei sired to free gas or air from dust but Wit-houtnecessarily afterward utilizinr the air or gas. It may also be used tocondense fumes from lead, zinc, silver, -copper and other smelters andto collect thetine particles of thesemetals and ores which generallyescape into the atmosphere. The apparatus can be made of` suitabledimensions to effectively condensa the fumes and collect the condensedmetallic particles. For this purpose, speal'cooling arrangements may besup- )lle r l The term gas cleaners. as used i'n the specification andin the claim's,is,intended to cover any of the uses above named.

The cleaner described is'of comparatively small size for its capacityand is cheap to construct and erect, and' also not liable toderangementor wear. can be placed in any suitable part of 'the gasmains. It can be used in a curved pipe or at an elbow equally as well asin a straight pipe, and c an also serve as a support for the pipe, curveor elbow. It takes up very little groundspace, not more than theordinary supports which must be under vthe pipe.

l. A dry gas cleaner comprising a separat-ing chamber provided with an1n-let and outlet arranged to conduct. theagas horizontallytherethrough, a collecting chamber connected to the open bot-tom oilsaid separating chamber and arranged to support the latter, battleplates in said separating chamber in the pat-h ot' the stream of as, andgutters on said baille plates `projecting beyond the faces thereof andleading downwardly andA forwardly toward the inlet and toward thecollecting chamber.

A dry gas cleaner comprising a separating chamber provided with inletand outlet arranged to conduct the as horizontally therethrough, acollecting chamber connected to the operi bottom of said separatingchamber and arranged to su port the latter, supports for the collecting(intuiber, vertical baille plates in said sepan ting chamber in the pathof the stream of gas, and gutters on the rear edges of said bailleplates projecting beyond the faces thereof and leading downwardly towardthe collecting chamber.

3. A dry gas cleaner comprising a pair of horizontally arrangedconduits, a casing therebet\\'een extending downwardly below theconduits and forming a horizontally disposed separating chamber, acollecting 'chamber connected'to the open bottom of said separatingchamber and vertically disposed longitudinally arranged spiral battle ofhorizontally arranged conduits, an enlarged casing therebetween andextending downwardly below the conduits and forming a horizontallydisposed separatingchamber, a collecting chamber connected to the openbottom of said separating chamber, vertically disposed longitudinallyarranged spiral baille plates in said separating chamber in the path ofa stream of gas, said plates extending downwardly to the bottom of theseparating chamber, and gutters on the plates projecting beyond bothfaces thereof and leading downwardly 4toward the collecting chamber.

A dry gas cleaner comprising a separating chamber provided with inletand outlet arranged to conduct the gas horizoutally therethrtmgh, acollecting' chamber conncted to the open bottom of sa itl separatingcluunber, vertically dis iosed longitudinally arranged spiral bat eplates in said separating chamber in the path of the the horizontal.

stream of gas, and transverse baille plates y located between saidvertical plates.

G. An dry gas cleaner' comprising a separating chamber provided withinlet and outlet arranged to conduct the gas horizontally therethrough,a collecting chamber connected to the open bottom of said Separatingchamber,` vertically disposed longitudinally varranged spiral bailleplates in said separating chamber in the path of the stream of Igas, andtransverse baille plates located between said vertical plates andinclined from 7. A dry cleaner comprising a separating chamber providedwith inlet and outlet arranged to conduct the gas horizontallytherethrough, a collecting chamber connected to the open bottom of said'separating chamber, vertically disposed vlongitudinally arranged spiralbattle plates in said separating chamber in the path of the stream ot'gas, and transverse batlle plates located between said vertical plates,vsaid transverse plates being provided with projections or:protuberances.

8. A dry gas cleaner comprising a separating chamber provided with inletand outlet'arranged to conduct the gas horizontally therethrough, acollecting chamber connected to the open bot-tom of said separatingchamber, vertically disposed longitudinally arranged spiral bailleplates in said separating chamber in the path of the stream of gas,transverse battle plates located between said vertical plates andinclined from the horizontal, and inclined transverse plates in the topof the separating chamber,

9. A dry cleaner comprising a separating chamberprovided with inlet andoutlet arranged to conduct. the horizontally therethrough, a collectingchamber connected to the open bottom of said separating chamber,vertically disposed longitudinally arranged spiral baille plates in saidseparating chan'lber in the path ot the stream ofgas, gutters or ledgeson said battle plates leading downwardly toward the collecting chamber,and ledges or gutters on the' side walls of said chamber leadingdownwardly toward the collecting chamber.

1G. A dry gas cleaner comprising a separating chamber provided withinlet and outlet arranged to conduct the gas horizontally therethrough,a collecting chamber connected to the open bottom ot' said separatingchamber, and a plurality of sets of vertically disposed longitudinallyarranged spiral baille plates in said chamber, thel plates of thesuccessive sets overlapping Aand being arranged relative to each otherso as t6 split the streams of gas passing between neetedto t-he openbottom, of said separating chambeiga plurality of sets of verticallydisposed longitudinally arranged spiral batlie plates'in said chamber,the plates ofA the successive sets overlapping, and being arrangedrelative to each other so as to split the streams of gas passing betweena preceding set of plates, and ledges or gutters on said plates leadingdownwardly toward the col.- lecting chamber.

12. In a dry gas cleaner the combination of a separating chamber, acollecting chamber connected to the bottom of said .separating chamber,there being a plurality of openings between said chambers, a pluralityofmovable valves between the separating and collectina chambers, saidvalves being each pivoted at' one side of one of said openings, a leverconnected to operate all ot said valves, a valve in the bottom of thecollecting chamber, and means coupled with the lever and the valve inthe collecting chamber arranged to so operate the valves that when thebottom valve is opened the top valves can be closed.

13. In a dry gas cleaner, thecombination of a separating chamber, acollecting chamber connected to the open bottom ot said separatingchamber, there being a plurality of openings between said chambers, apl'urality ot' pivoted valves between the separating and collectingchambers, said Valves being in a common horizontal plane and eachcovering 4an opening, a l rotatable shaft mounted in the collectingchamber below the valves, levers and links connecting said shaft to eachof said valves, a valve in the A bottom of the collecting chamber, andlevers and connecting mechanism for operating said shaft and collectingchamber valve si"4 multaneously and so arranged that when" ythe bottomvalve is open the -top valves are closed, and vice versa.

In test1mony whereof, I have hereunto set my hand.

I PATRICK MEEHAN.

Witnesses:

MARIE Mann-AN, WV. B. MOORE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

